./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/termination-memory-alloca/c.03-alloca-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/termination-memory-alloca/c.03-alloca-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ffd6e9554cad43049f3baa89c0ba2bf94011d3e069a47b1754df8be10679286a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 18:33:56,417 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 18:33:56,482 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2024-11-22 18:33:56,487 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 18:33:56,488 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 18:33:56,510 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 18:33:56,512 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 18:33:56,512 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 18:33:56,513 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 18:33:56,514 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 18:33:56,516 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 18:33:56,516 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 18:33:56,516 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 18:33:56,516 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 18:33:56,517 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 18:33:56,517 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 18:33:56,517 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 18:33:56,517 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 18:33:56,517 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-22 18:33:56,517 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-22 18:33:56,518 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-22 18:33:56,519 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 18:33:56,519 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-22 18:33:56,519 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 18:33:56,520 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 18:33:56,520 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 18:33:56,520 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 18:33:56,520 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 18:33:56,520 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 18:33:56,520 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 18:33:56,521 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 18:33:56,521 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 18:33:56,521 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 18:33:56,521 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 18:33:56,521 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 18:33:56,521 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 18:33:56,521 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 18:33:56,521 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 18:33:56,522 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 18:33:56,522 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ffd6e9554cad43049f3baa89c0ba2bf94011d3e069a47b1754df8be10679286a [2024-11-22 18:33:56,723 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 18:33:56,748 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 18:33:56,750 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 18:33:56,751 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 18:33:56,751 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 18:33:56,753 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/c.03-alloca-1.i [2024-11-22 18:33:57,974 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 18:33:58,143 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 18:33:58,144 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/c.03-alloca-1.i [2024-11-22 18:33:58,159 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7d22184c/b7d24e253f284f26b9d3290f4b1036ba/FLAGbd7afe934 [2024-11-22 18:33:58,170 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7d22184c/b7d24e253f284f26b9d3290f4b1036ba [2024-11-22 18:33:58,172 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 18:33:58,173 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 18:33:58,174 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 18:33:58,174 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 18:33:58,181 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 18:33:58,182 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 06:33:58" (1/1) ... [2024-11-22 18:33:58,183 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e2ffb5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:33:58, skipping insertion in model container [2024-11-22 18:33:58,183 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 06:33:58" (1/1) ... [2024-11-22 18:33:58,211 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 18:33:58,449 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 18:33:58,471 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 18:33:58,512 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 18:33:58,534 INFO L204 MainTranslator]: Completed translation [2024-11-22 18:33:58,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:33:58 WrapperNode [2024-11-22 18:33:58,535 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 18:33:58,536 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 18:33:58,536 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 18:33:58,536 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 18:33:58,541 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:33:58" (1/1) ... [2024-11-22 18:33:58,551 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:33:58" (1/1) ... [2024-11-22 18:33:58,567 INFO L138 Inliner]: procedures = 111, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 89 [2024-11-22 18:33:58,567 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 18:33:58,568 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 18:33:58,568 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 18:33:58,568 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 18:33:58,575 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:33:58" (1/1) ... [2024-11-22 18:33:58,575 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:33:58" (1/1) ... [2024-11-22 18:33:58,577 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:33:58" (1/1) ... [2024-11-22 18:33:58,587 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [5, 2, 5, 2]. 36 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0, 0, 0, 0]. The 6 writes are split as follows [2, 1, 2, 1]. [2024-11-22 18:33:58,587 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:33:58" (1/1) ... [2024-11-22 18:33:58,588 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:33:58" (1/1) ... [2024-11-22 18:33:58,591 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:33:58" (1/1) ... [2024-11-22 18:33:58,593 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:33:58" (1/1) ... [2024-11-22 18:33:58,597 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:33:58" (1/1) ... [2024-11-22 18:33:58,598 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:33:58" (1/1) ... [2024-11-22 18:33:58,600 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 18:33:58,600 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 18:33:58,600 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 18:33:58,600 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 18:33:58,601 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:33:58" (1/1) ... [2024-11-22 18:33:58,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 18:33:58,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:33:58,634 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 18:33:58,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 18:33:58,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 18:33:58,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-22 18:33:58,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-22 18:33:58,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-22 18:33:58,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 18:33:58,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-22 18:33:58,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-22 18:33:58,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-22 18:33:58,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-22 18:33:58,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 18:33:58,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 18:33:58,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 18:33:58,777 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 18:33:58,779 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 18:33:58,957 INFO L? ?]: Removed 68 outVars from TransFormulas that were not future-live. [2024-11-22 18:33:58,958 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 18:33:58,972 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 18:33:58,972 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 18:33:58,972 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:33:58 BoogieIcfgContainer [2024-11-22 18:33:58,972 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 18:33:58,976 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 18:33:58,976 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 18:33:58,979 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 18:33:58,979 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 06:33:58" (1/3) ... [2024-11-22 18:33:58,979 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c041339 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 06:33:58, skipping insertion in model container [2024-11-22 18:33:58,980 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:33:58" (2/3) ... [2024-11-22 18:33:58,980 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c041339 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 06:33:58, skipping insertion in model container [2024-11-22 18:33:58,980 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:33:58" (3/3) ... [2024-11-22 18:33:58,981 INFO L112 eAbstractionObserver]: Analyzing ICFG c.03-alloca-1.i [2024-11-22 18:33:58,994 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 18:33:58,995 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2024-11-22 18:33:59,033 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:33:59,039 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@537366d8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:33:59,039 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-11-22 18:33:59,042 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 27 states have (on average 2.2222222222222223) internal successors, (60), 56 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:33:59,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-22 18:33:59,046 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:33:59,047 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-22 18:33:59,047 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2024-11-22 18:33:59,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:33:59,052 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2024-11-22 18:33:59,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:33:59,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8229065] [2024-11-22 18:33:59,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:33:59,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:33:59,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:33:59,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:33:59,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:33:59,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8229065] [2024-11-22 18:33:59,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8229065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:33:59,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:33:59,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:33:59,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834098593] [2024-11-22 18:33:59,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:33:59,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:33:59,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:33:59,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:33:59,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:33:59,405 INFO L87 Difference]: Start difference. First operand has 57 states, 27 states have (on average 2.2222222222222223) internal successors, (60), 56 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:33:59,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:33:59,476 INFO L93 Difference]: Finished difference Result 52 states and 54 transitions. [2024-11-22 18:33:59,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:33:59,478 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-22 18:33:59,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:33:59,483 INFO L225 Difference]: With dead ends: 52 [2024-11-22 18:33:59,483 INFO L226 Difference]: Without dead ends: 50 [2024-11-22 18:33:59,485 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:33:59,487 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 42 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 18:33:59,488 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 26 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 18:33:59,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-22 18:33:59,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2024-11-22 18:33:59,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 26 states have (on average 2.0) internal successors, (52), 49 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:33:59,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 52 transitions. [2024-11-22 18:33:59,532 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 52 transitions. Word has length 3 [2024-11-22 18:33:59,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:33:59,533 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 52 transitions. [2024-11-22 18:33:59,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:33:59,533 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 52 transitions. [2024-11-22 18:33:59,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-22 18:33:59,533 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:33:59,533 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-22 18:33:59,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 18:33:59,534 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2024-11-22 18:33:59,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:33:59,535 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2024-11-22 18:33:59,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:33:59,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130210968] [2024-11-22 18:33:59,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:33:59,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:33:59,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:33:59,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:33:59,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:33:59,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130210968] [2024-11-22 18:33:59,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130210968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:33:59,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:33:59,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:33:59,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024066526] [2024-11-22 18:33:59,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:33:59,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:33:59,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:33:59,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:33:59,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:33:59,744 INFO L87 Difference]: Start difference. First operand 50 states and 52 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:33:59,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:33:59,797 INFO L93 Difference]: Finished difference Result 45 states and 47 transitions. [2024-11-22 18:33:59,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:33:59,797 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-22 18:33:59,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:33:59,798 INFO L225 Difference]: With dead ends: 45 [2024-11-22 18:33:59,799 INFO L226 Difference]: Without dead ends: 45 [2024-11-22 18:33:59,799 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:33:59,800 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 43 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 18:33:59,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 26 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 18:33:59,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-11-22 18:33:59,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-11-22 18:33:59,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 26 states have (on average 1.8076923076923077) internal successors, (47), 44 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:33:59,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 47 transitions. [2024-11-22 18:33:59,808 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 47 transitions. Word has length 3 [2024-11-22 18:33:59,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:33:59,808 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 47 transitions. [2024-11-22 18:33:59,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:33:59,809 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 47 transitions. [2024-11-22 18:33:59,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-22 18:33:59,809 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:33:59,809 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-22 18:33:59,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 18:33:59,810 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2024-11-22 18:33:59,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:33:59,813 INFO L85 PathProgramCache]: Analyzing trace with hash 925543, now seen corresponding path program 1 times [2024-11-22 18:33:59,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:33:59,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941385782] [2024-11-22 18:33:59,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:33:59,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:33:59,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:33:59,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:33:59,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:33:59,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941385782] [2024-11-22 18:33:59,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941385782] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:33:59,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:33:59,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:33:59,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749626075] [2024-11-22 18:33:59,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:33:59,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:33:59,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:33:59,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:33:59,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:33:59,903 INFO L87 Difference]: Start difference. First operand 45 states and 47 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:33:59,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:33:59,943 INFO L93 Difference]: Finished difference Result 43 states and 45 transitions. [2024-11-22 18:33:59,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:33:59,944 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-22 18:33:59,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:33:59,944 INFO L225 Difference]: With dead ends: 43 [2024-11-22 18:33:59,944 INFO L226 Difference]: Without dead ends: 43 [2024-11-22 18:33:59,944 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:33:59,945 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 37 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 18:33:59,945 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 21 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 18:33:59,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-11-22 18:33:59,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2024-11-22 18:33:59,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 26 states have (on average 1.7307692307692308) internal successors, (45), 42 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:33:59,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 45 transitions. [2024-11-22 18:33:59,950 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 45 transitions. Word has length 4 [2024-11-22 18:33:59,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:33:59,950 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 45 transitions. [2024-11-22 18:33:59,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:33:59,951 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 45 transitions. [2024-11-22 18:33:59,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-22 18:33:59,952 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:33:59,952 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-22 18:33:59,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 18:33:59,952 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2024-11-22 18:33:59,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:33:59,954 INFO L85 PathProgramCache]: Analyzing trace with hash 925544, now seen corresponding path program 1 times [2024-11-22 18:33:59,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:33:59,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820371569] [2024-11-22 18:33:59,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:33:59,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:33:59,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:34:00,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:34:00,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:34:00,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820371569] [2024-11-22 18:34:00,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820371569] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:34:00,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:34:00,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:34:00,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199611848] [2024-11-22 18:34:00,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:34:00,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:34:00,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:34:00,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:34:00,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:34:00,076 INFO L87 Difference]: Start difference. First operand 43 states and 45 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:34:00,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:34:00,117 INFO L93 Difference]: Finished difference Result 41 states and 43 transitions. [2024-11-22 18:34:00,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:34:00,117 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-22 18:34:00,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:34:00,119 INFO L225 Difference]: With dead ends: 41 [2024-11-22 18:34:00,120 INFO L226 Difference]: Without dead ends: 41 [2024-11-22 18:34:00,120 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:34:00,121 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 38 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 18:34:00,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 24 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 18:34:00,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-11-22 18:34:00,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2024-11-22 18:34:00,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 26 states have (on average 1.6538461538461537) internal successors, (43), 40 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:34:00,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2024-11-22 18:34:00,126 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 4 [2024-11-22 18:34:00,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:34:00,128 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2024-11-22 18:34:00,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:34:00,128 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2024-11-22 18:34:00,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-22 18:34:00,128 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:34:00,128 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-22 18:34:00,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 18:34:00,129 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2024-11-22 18:34:00,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:34:00,129 INFO L85 PathProgramCache]: Analyzing trace with hash 28691812, now seen corresponding path program 1 times [2024-11-22 18:34:00,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:34:00,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236219130] [2024-11-22 18:34:00,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:34:00,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:34:00,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:34:00,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:34:00,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:34:00,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236219130] [2024-11-22 18:34:00,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236219130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:34:00,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:34:00,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:34:00,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578537684] [2024-11-22 18:34:00,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:34:00,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:34:00,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:34:00,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:34:00,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:34:00,201 INFO L87 Difference]: Start difference. First operand 41 states and 43 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:34:00,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:34:00,245 INFO L93 Difference]: Finished difference Result 36 states and 38 transitions. [2024-11-22 18:34:00,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:34:00,246 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-22 18:34:00,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:34:00,246 INFO L225 Difference]: With dead ends: 36 [2024-11-22 18:34:00,246 INFO L226 Difference]: Without dead ends: 36 [2024-11-22 18:34:00,247 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:34:00,247 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 26 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 18:34:00,248 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 16 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 18:34:00,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-11-22 18:34:00,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2024-11-22 18:34:00,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 35 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:34:00,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2024-11-22 18:34:00,252 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 5 [2024-11-22 18:34:00,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:34:00,252 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions. [2024-11-22 18:34:00,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:34:00,252 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2024-11-22 18:34:00,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-22 18:34:00,252 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:34:00,253 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-22 18:34:00,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 18:34:00,253 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2024-11-22 18:34:00,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:34:00,254 INFO L85 PathProgramCache]: Analyzing trace with hash 28691813, now seen corresponding path program 1 times [2024-11-22 18:34:00,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:34:00,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057362716] [2024-11-22 18:34:00,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:34:00,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:34:00,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:34:00,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:34:00,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:34:00,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057362716] [2024-11-22 18:34:00,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057362716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:34:00,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:34:00,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:34:00,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182323057] [2024-11-22 18:34:00,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:34:00,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:34:00,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:34:00,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:34:00,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:34:00,324 INFO L87 Difference]: Start difference. First operand 36 states and 38 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:34:00,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:34:00,351 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2024-11-22 18:34:00,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:34:00,354 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-22 18:34:00,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:34:00,354 INFO L225 Difference]: With dead ends: 31 [2024-11-22 18:34:00,354 INFO L226 Difference]: Without dead ends: 31 [2024-11-22 18:34:00,354 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:34:00,355 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 27 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 18:34:00,355 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 19 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 18:34:00,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-11-22 18:34:00,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2024-11-22 18:34:00,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 30 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:34:00,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2024-11-22 18:34:00,357 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 5 [2024-11-22 18:34:00,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:34:00,357 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2024-11-22 18:34:00,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:34:00,360 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2024-11-22 18:34:00,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-22 18:34:00,360 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:34:00,360 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-22 18:34:00,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 18:34:00,360 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2024-11-22 18:34:00,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:34:00,361 INFO L85 PathProgramCache]: Analyzing trace with hash 889446154, now seen corresponding path program 1 times [2024-11-22 18:34:00,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:34:00,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289185940] [2024-11-22 18:34:00,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:34:00,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:34:00,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:34:00,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:34:00,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:34:00,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289185940] [2024-11-22 18:34:00,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289185940] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:34:00,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:34:00,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:34:00,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078630415] [2024-11-22 18:34:00,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:34:00,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:34:00,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:34:00,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:34:00,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:34:00,402 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:34:00,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:34:00,429 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2024-11-22 18:34:00,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:34:00,430 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-22 18:34:00,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:34:00,431 INFO L225 Difference]: With dead ends: 29 [2024-11-22 18:34:00,431 INFO L226 Difference]: Without dead ends: 29 [2024-11-22 18:34:00,431 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:34:00,432 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 20 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 18:34:00,433 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 15 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 18:34:00,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-11-22 18:34:00,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2024-11-22 18:34:00,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 28 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:34:00,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2024-11-22 18:34:00,436 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 6 [2024-11-22 18:34:00,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:34:00,436 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2024-11-22 18:34:00,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:34:00,436 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2024-11-22 18:34:00,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-22 18:34:00,436 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:34:00,437 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-22 18:34:00,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 18:34:00,437 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2024-11-22 18:34:00,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:34:00,437 INFO L85 PathProgramCache]: Analyzing trace with hash 889446155, now seen corresponding path program 1 times [2024-11-22 18:34:00,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:34:00,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079802855] [2024-11-22 18:34:00,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:34:00,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:34:00,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:34:00,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:34:00,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:34:00,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079802855] [2024-11-22 18:34:00,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079802855] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:34:00,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:34:00,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:34:00,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057301434] [2024-11-22 18:34:00,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:34:00,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:34:00,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:34:00,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:34:00,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:34:00,510 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:34:00,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:34:00,529 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2024-11-22 18:34:00,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:34:00,530 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-22 18:34:00,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:34:00,530 INFO L225 Difference]: With dead ends: 27 [2024-11-22 18:34:00,530 INFO L226 Difference]: Without dead ends: 27 [2024-11-22 18:34:00,530 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:34:00,531 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 20 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 18:34:00,531 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 18 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 18:34:00,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-11-22 18:34:00,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-11-22 18:34:00,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 26 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:34:00,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2024-11-22 18:34:00,533 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 6 [2024-11-22 18:34:00,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:34:00,536 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2024-11-22 18:34:00,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:34:00,536 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2024-11-22 18:34:00,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-22 18:34:00,537 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:34:00,537 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:34:00,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 18:34:00,537 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2024-11-22 18:34:00,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:34:00,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1549595562, now seen corresponding path program 1 times [2024-11-22 18:34:00,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:34:00,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634311877] [2024-11-22 18:34:00,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:34:00,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:34:00,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:34:00,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:34:00,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:34:00,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634311877] [2024-11-22 18:34:00,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634311877] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:34:00,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:34:00,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:34:00,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944389832] [2024-11-22 18:34:00,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:34:00,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 18:34:00,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:34:00,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 18:34:00,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 18:34:00,960 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:34:01,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:34:01,000 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2024-11-22 18:34:01,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:34:01,001 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-22 18:34:01,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:34:01,001 INFO L225 Difference]: With dead ends: 26 [2024-11-22 18:34:01,001 INFO L226 Difference]: Without dead ends: 0 [2024-11-22 18:34:01,001 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 18:34:01,002 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 28 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 18:34:01,002 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 23 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 18:34:01,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-22 18:34:01,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-22 18:34:01,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:34:01,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-22 18:34:01,002 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2024-11-22 18:34:01,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:34:01,003 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-22 18:34:01,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:34:01,003 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-22 18:34:01,003 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-22 18:34:01,008 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 29 remaining) [2024-11-22 18:34:01,008 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 29 remaining) [2024-11-22 18:34:01,008 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 29 remaining) [2024-11-22 18:34:01,009 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 29 remaining) [2024-11-22 18:34:01,009 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 29 remaining) [2024-11-22 18:34:01,009 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 29 remaining) [2024-11-22 18:34:01,009 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 29 remaining) [2024-11-22 18:34:01,009 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 29 remaining) [2024-11-22 18:34:01,009 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 29 remaining) [2024-11-22 18:34:01,009 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 29 remaining) [2024-11-22 18:34:01,009 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 29 remaining) [2024-11-22 18:34:01,009 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 29 remaining) [2024-11-22 18:34:01,009 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 29 remaining) [2024-11-22 18:34:01,009 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 29 remaining) [2024-11-22 18:34:01,010 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 29 remaining) [2024-11-22 18:34:01,010 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 29 remaining) [2024-11-22 18:34:01,010 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 29 remaining) [2024-11-22 18:34:01,010 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 29 remaining) [2024-11-22 18:34:01,010 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 29 remaining) [2024-11-22 18:34:01,010 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 29 remaining) [2024-11-22 18:34:01,010 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 29 remaining) [2024-11-22 18:34:01,010 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 29 remaining) [2024-11-22 18:34:01,010 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 29 remaining) [2024-11-22 18:34:01,010 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 29 remaining) [2024-11-22 18:34:01,010 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 29 remaining) [2024-11-22 18:34:01,010 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 29 remaining) [2024-11-22 18:34:01,011 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 29 remaining) [2024-11-22 18:34:01,011 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 29 remaining) [2024-11-22 18:34:01,011 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK (0 of 29 remaining) [2024-11-22 18:34:01,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 18:34:01,015 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:34:01,017 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-22 18:34:01,020 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 06:34:01 BoogieIcfgContainer [2024-11-22 18:34:01,020 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-22 18:34:01,021 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-22 18:34:01,021 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-22 18:34:01,021 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-22 18:34:01,021 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:33:58" (3/4) ... [2024-11-22 18:34:01,029 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-22 18:34:01,036 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-22 18:34:01,036 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-22 18:34:01,036 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-22 18:34:01,037 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-22 18:34:01,107 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-22 18:34:01,107 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-22 18:34:01,107 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-22 18:34:01,108 INFO L158 Benchmark]: Toolchain (without parser) took 2934.81ms. Allocated memory was 159.4MB in the beginning and 201.3MB in the end (delta: 41.9MB). Free memory was 90.1MB in the beginning and 166.7MB in the end (delta: -76.7MB). Peak memory consumption was 78.1MB. Max. memory is 16.1GB. [2024-11-22 18:34:01,108 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 109.1MB. Free memory is still 73.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 18:34:01,108 INFO L158 Benchmark]: CACSL2BoogieTranslator took 361.38ms. Allocated memory is still 159.4MB. Free memory was 89.9MB in the beginning and 125.8MB in the end (delta: -36.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-22 18:34:01,108 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.48ms. Allocated memory is still 159.4MB. Free memory was 125.8MB in the beginning and 124.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 18:34:01,108 INFO L158 Benchmark]: Boogie Preprocessor took 32.10ms. Allocated memory is still 159.4MB. Free memory was 124.3MB in the beginning and 122.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 18:34:01,108 INFO L158 Benchmark]: RCFGBuilder took 372.14ms. Allocated memory is still 159.4MB. Free memory was 122.2MB in the beginning and 104.3MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-22 18:34:01,109 INFO L158 Benchmark]: TraceAbstraction took 2044.56ms. Allocated memory was 159.4MB in the beginning and 201.3MB in the end (delta: 41.9MB). Free memory was 103.7MB in the beginning and 56.2MB in the end (delta: 47.5MB). Peak memory consumption was 91.2MB. Max. memory is 16.1GB. [2024-11-22 18:34:01,109 INFO L158 Benchmark]: Witness Printer took 86.90ms. Allocated memory is still 201.3MB. Free memory was 56.2MB in the beginning and 166.7MB in the end (delta: -110.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 18:34:01,110 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 109.1MB. Free memory is still 73.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 361.38ms. Allocated memory is still 159.4MB. Free memory was 89.9MB in the beginning and 125.8MB in the end (delta: -36.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.48ms. Allocated memory is still 159.4MB. Free memory was 125.8MB in the beginning and 124.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.10ms. Allocated memory is still 159.4MB. Free memory was 124.3MB in the beginning and 122.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 372.14ms. Allocated memory is still 159.4MB. Free memory was 122.2MB in the beginning and 104.3MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2044.56ms. Allocated memory was 159.4MB in the beginning and 201.3MB in the end (delta: 41.9MB). Free memory was 103.7MB in the beginning and 56.2MB in the end (delta: 47.5MB). Peak memory consumption was 91.2MB. Max. memory is 16.1GB. * Witness Printer took 86.90ms. Allocated memory is still 201.3MB. Free memory was 56.2MB in the beginning and 166.7MB in the end (delta: -110.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 566]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 57 locations, 29 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 281 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 281 mSDsluCounter, 188 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 236 IncrementalHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 168 mSDtfsCounter, 236 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=0, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 618 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 29 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-22 18:34:01,124 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE